Airtac JSI Series Standard Cylinder JSI100X20
The AirTAC Airtac JSI Series Standard Cylinder JSI100X20 is a genuine double acting JIS-standard air cylinder with a Ø100mm bore and 20mm stroke, G1/2 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ100 mm
- Stroke20 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM26×1.5
- CushionAdjustable, 33 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSI Series Standard Cylinder JSI100X20
Delivering 3927 N of push force at 0.5 MPa, this double-acting JIS-standard profile cylinder saves valuable machine space by being noticeably shorter than an ISO 15552 unit of the same 100 mm bore. The extruded hard-anodized aluminum barrel omits external rods to resist wear, while the two-way piston seal retains grease for a long, low-friction service life. Plan for roughly 2356 N of real work at 0.5 MPa, which means it lifts about 200 kg vertically with a 2:1 safety margin.
Because this specific SKU lacks the -S magnet, it cannot accept CMSE or DMSE position switches. It features a 32 mm carbon steel rod with an M26x1.5 thread, adjustable air cushions at both ends, and a G1/2 port. For jobs requiring opposing or variable strokes, consider the related JSID double-rod or JSIJ adjustable-stroke variants.
Airtac JSI Series Standard Cylinder JSI100X20 Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI100X20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 33 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSI Series Standard Cylinder JSI100X20
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×20 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSI Series Standard Cylinder JSI100X20 Is Used
Heavy-Duty Stamping Clamp
Generates 3927 N of push force at 0.5 MPa to lock thick steel plates into a stamping press die over a short 20 mm travel.
Injection Mold Ejector
Provides a compact 100 mm bore actuator for high-force ejection of dense plastic parts from an injection molding tool.
Hydraulic Press Block
Acts as a short-stroke positioning block that resists heavy side loads when securing large cast housings inside a hydraulic press.
Is the Airtac JSI Series Standard Cylinder JSI100X20 the Right Cylinder?
When sizing this 100 mm bore, stepping down to an 80 mm cylinder drops the 0.5 MPa push force to 2513 N, while moving up to a 125 mm bore increases it to 6136 N. This JSI100X20 is built for short 20 mm strokes where massive clamping force is needed in a tight footprint. If your machine needs to hold a load vertically during an air loss or valve centering event, note that the piston will drift; the end cushions only decelerate the stroke and do not act as a brake. You must add an external rod lock or pilot-operated check valve for secure holding.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSI Series Standard Cylinder JSI100X20 FAQ
The 100 mm bore yields a push of 3927 N and a pull of 3574 N at 0.5 MPa, increasing to a push of 5497 N and a pull of 5003 N at 0.7 MPa. The theoretical maximum force is 801 kgf at 1.0 MPa. It uses a G1/2 port and runs at speeds of 30-800 mm/s.
No, this specific SKU does not include the -S magnet, so it cannot accept CMSE or DMSE magnetic switches. You would need the -S variant for sensing. Additionally, this JIS profile cylinder is shorter and more compact than a standard ISO 15552 cylinder of the same bore.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC JSI Cylinders
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